<template>
  <el-dialog width="500px" title="导入数据" :visible="excelD" @close="hClose">
    <el-row type="flex" justify="center">
      <div class="upload-excel">
        <input
          ref="excel-upload-input"
          class="excel-upload-input"
          type="file"
          accept=".xlsx"
          @change="hFile"
        >
        <div
          class="drop drag-and-drop"
          @dragover.prevent
          @dragenter.prevent
          @drop="handleDrop"
        >
          <i class="el-icon-upload" />
          <el-button type="text" @click="hExcel">下载导入模板</el-button>

          <span>将文件拖到此处或
            <el-button type="text" @click="hUpload">点击上传</el-button>
          </span>

        </div>
      </div></el-row>
    <el-row type="flex" justify="end">
      <!-- update:props属性名，值 直接修改 .sync修饰符的属性值 -->
      <el-button size="mini" type="primary" @click="$emit('update:showExcelDialog', false)">取消</el-button>
    </el-row>
  </el-dialog>
</template>

<script>
import { getExportTemplate, uploadExcel } from '@/api/employee'
import FileSaver from 'file-saver'
export default {
  props: {
    excelD: {
      type: Boolean,
      required: true
    }
  },
  methods: {
    handleDrop(event) {
      event.preventDefault()
      const files = event.dataTransfer.files[0]
      // 执行文件上传操作，比如使用axios发送文件到服务器
      this.uploadFiles(files)
    },
    async uploadFiles(files) {
      // 这里可以执行上传逻辑，比如使用axios库发送文件到服务器
      // 可以遍历文件列表，针对每个文件执行上传操作
      // console.log(e)
      const file = files
      if (file) {
        const fd = new FormData()
        fd.append('file', file)
        try {
          await uploadExcel(fd)
          this.$message.success('添加成功')
          this.$emit('updategetdepts')
          this.$emit('update:excel-d', false)
        } finally {
          this.$refs['excel-upload-input'].value = ''
        }
      }
    },
    async hFile(e) {
      const file = e.target.files[0]
      if (file) {
        const fd = new FormData()
        fd.append('file', file)
        try {
          await uploadExcel(fd)
          this.$message.success('添加成功')
          this.$emit('updategetdepts')
          this.$emit('update:excel-d', false)
        } finally {
          this.$refs['excel-upload-input'].value = ''
        }
      }
    },
    hUpload() {
      this.$refs['excel-upload-input'].click()
    },
    async hExcel() {
      const res = await getExportTemplate()
      FileSaver.saveAs(res, '导入员工模板.xlsx')
    },
    hClose() {
      this.$emit('update:excel-d', false)
    }
  }
}
</script>

<style scoped lang="scss">
    .upload-excel {
      display: flex;
      justify-content: center;
      margin: 20px;
      width: 360px;
      height: 180px;
      align-items: center;
      color: #697086;
      .excel-upload-input {
        display: none;
        z-index: -9999;
      }
      .btn-upload,
      .drop {
        border: 1px dashed #dcdfe6;
        width: 100%;
        height: 100%;
        text-align: center;
        line-height: 160px;
        border-radius: 8px;
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      .drop {
        line-height: 40px;
        color: #bbb;
        i {
          font-size: 60px;
          display: block;
          color: #c0c4cc;
        }
        .drag-and-drop {
          width: 100%;
          height: 100%;
        }
      }
    }
</style>
